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Nitration of phthalic acid
@Fery,

Even starting with the anhydride the overal yield of pure 3-nitrophthalic acid is only ab ...
5-12-2019 at 15:54
by: Boffis
Nitration of phthalic acid
The problem is not the yield of nitro acid but the ratio of 3 to 4 nitro acids and their separation. ...
5-12-2019 at 09:23
by: Boffis
Drying Formic Acid
The best laboratory method for high test formic acid preparation is azotropic distillation with hept ...
5-12-2019 at 01:22
by: Boffis
Got some rare stuff. Arsenic trioxide
I have worked in mine where native arsenic occurred in seams and blocks more than 15cm thick in calc ...
4-12-2019 at 15:35
by: Boffis
Diethylamine Hydrochloride Synthesis
I have just posted in the prepublication section my write-up on my experiments into the hydrolysis o ...
4-12-2019 at 06:42
by: Boffis
Diethylamine and m-Toluic acid from DEET
As promised my write-up on the alkaline hydrolysis of DEET is attached. Any comments, typos, or othe ...
4-12-2019 at 06:39
by: Boffis
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite
Hi nitro-genes; had a look at the original paper. Mmmm they talk about nitrosoascorbic acid but in r ...
2-12-2019 at 14:53
by: Boffis
One of the easiest scents to produce
Ahh... that sounds more plausible! So the bit about citral and acetone is just irrelevant bollocks t ...
2-12-2019 at 12:58
by: Boffis
Report on making Aluminium Iodide
Any idea what the hydration state of aluminium iodide is? You certainly haven't made anhydrous AlI3 ...
2-12-2019 at 01:22
by: Boffis
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite
Given the conditions under which Brauer describes the preparation of hyponitrites (sodium amalgan re ...
1-12-2019 at 13:35
by: Boffis
One of the easiest scents to produce
Castor oil is a "fixed" or fatty oil, that is its a mixture of glycerol esters but in the descriptio ...
30-11-2019 at 08:10
by: Boffis
Azeotropic esterifications
Hi Pumukli, on the point of using a heavy entrainer in a soxhlet extract as you had done; why doesn' ...
29-11-2019 at 12:19
by: Boffis
Azeotropic esterifications
I ran a larger scale oxalate preparation as before and added a little toluene sulphonic acid to assi ...
28-11-2019 at 04:59
by: Boffis
OTC pyrazole synthesis
Well, since nitrogenes seems to have lost interest in pyrazoles I will pursue them alone!

I have ...
27-11-2019 at 13:24
by: Boffis
Diethylamine hydrochloride - Success!
@ monolithic, there is a recently resurrected thread with an old link to a paper that describes the ...
27-11-2019 at 10:24
by: Boffis
What would the procedure for Benzidine to aniline look like?
Glycerin is not stable enough at high temperatures to replace ethylene or propylene glycol in the de ...
26-11-2019 at 15:04
by: Boffis
Masking of nitrite during nitrate determination
How much is "some"? Are you using a published procedure or a home-brewed technique? Also this is not ...
26-11-2019 at 07:06
by: Boffis
Diethylamine hydrochloride - Success!
I was unable to find 100% DEET locally but 95% was easy to come by. The main impurities seem to be l ...
25-11-2019 at 13:37
by: Boffis
Azeotropic esterifications
Thanks Pumukli, interestingly I am currently trying to azeotropically dry 350ml of bought 95% ethano ...
25-11-2019 at 07:21
by: Boffis
Azeotropic esterifications
Well I distilled the diethyl oxalate and got 38.09g boiling between 183-185 C which is about 55% so ...
25-11-2019 at 05:03
by: Boffis
Diethylamine hydrochloride - Success!
Without knowning what the other 75% of the original preparation was its hard to say what you have ma ...
25-11-2019 at 04:16
by: Boffis
Diethylamine hydrochloride - Success!
I echo Pumukli's comments and likewise do not wish to be seen as harsh but from the limited amount o ...
24-11-2019 at 10:02
by: Boffis
How to synthesise Sulfosalicylic acid
Hi vibbzlab here it is:

https://archive.org/search.php?query=organic%20analytical%20reagents%20we ...
24-11-2019 at 08:51
by: Boffis
Azeotropic esterifications
Thanks Pumukli, I am just doing the work-up on the benzoate batch. I first distilled off 150ml of th ...
24-11-2019 at 07:38
by: Boffis
How to synthesise Sulfosalicylic acid
@vibbzlab; Some time ago I posted links to the 4 volumes of Welcher "Organic analytical reagent". In ...
24-11-2019 at 05:57
by: Boffis
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